While I use some exotic beasts, I have only a small cavalry and most is located in the south outside of my forest. So for a horse import I'll pretty much be 
[img]https://45.media.tumblr.com/447773bd896d668428b6ae5c8dcd1c1d/tumblr_o560jdtbD11rcn1qfo1_250.gif[/img] 
(and will trade wood, meat, or iron :D)